Oral hygiene tool



FIG. 1 is a perspective view of an oral hygiene tool, showing my new design;

FIG. 2 is a fragmentary cross-sectional view taken along lines 2-2 in FIG. 1; and,

FIG. 3 is a fragmentary exploded perspective view of the oral hygiene tool of FIG. 1. 

CLAIM The ornamental design for an oral hygiene tool, as shown and described. 